Valentine
Concise Oxford English Dictionary © 2008 Oxford University Press:
valentine/ˈvaləntʌɪn/
▶noun a card sent on St Valentine's Day (14 February) to a person one loves or is attracted to.
■ a person to whom one sends such a card.
– origin ME: from OFr. Valentin, from L. Valentinus, the name of two saints.
'Valentine' also found in these Oxford entries:

